The Crystal Report in the Web "has a communication error. will stop printing "

By this problem quickly toss death, dead and alive can not find the reason, find a bunch of answers, no outside of these kinds of situations, but none of the works

1. Binds data in the Page_Init. Invalid.
2. The version of the ActiveX control, I tried 10.2.0.1146 and so on multiple versions of the dll,10.2 beginning of the also can, 10.5 does not display the Print dialog box at all.
3. The passed arguments and controls conflict, nor
4. Browser version, IE6, 7, 8 are not
5. The configuration in Web. config adds the following configuration, but with no effect:

<sectiongroup name= "BusinessObjects" >
<sectiongroup name= "Crystalreports" >
<section name= "Printcontrol" type= "System.Configuration.NameValueSectionHandler, System, version=1.0.3300.0, Culture=neutral, publickeytoken=b77a5c561934e089, Custom=null "/>
</sectionGroup>
</sectionGroup>

At the end of the rope, suddenly found that the use of the 192.168.1.1 address can be accessed normally, and the use of a port (printed page URL with a port) is not. Finally found that the real reason, in fact, is because the URL with a port number caused, this bug really makes people vomit blood.